Splitting buck



Dec. 13, 1927.

E. ROLLAND SPLITTING BUCK Filed Ju ne 24. 1925 INVENTOR. flags/2e fiol/a 21d,

d 15 proved splitting buck;

Patented .Dec. 13; i927;

l j l EUGENE HOLLAND, oF cLAnKsBURG; wns'r; VIRGINIA; iissieritm TonoL AunGLAss f COMPANY, or oLAnKsBun 'wEs'r vineima-ncozeronemou or wnsrgvinem as ,SVPLITTING CK so as to form one oi more 'sect'ions of glass,

7 the flattening of said sections.

' My present invention relates to a method of'and, means for splitting the. cylinder sec- 1 tions by means of whichsuch operation may be materially facilitated.

' The accompanying drawings illustrate my invention.

Fig. 1 is a perspective Fig. 2 is a central vertical section; Fig. 3 is an enlarged vertical sectional detail, and I Fig. 4 is a transverse sectional detail. In the drawings indicates a main frame or buck provided at its top with a series of cradle-like supports 11 arranged in laterally spaced pairs so as to form a support] for glass cylinder sections, said supports being: laterally spaced to receive my improved electric heating means by which the glass may be heated along a desired line as a preliminary to splitting. v i j My improved heating means comprises a lower bar 12 and an upper bar 13; a pluralityof vertically movable plungers '14, each having an insulating head 15 and nor mally yieldingly urged upwardly. by spring mostconveniently in the form of a narrow tapeof metal capable of acquiring a desired temperature under the application of an electric current. i

Tape 17 is anchored at one end-18 to bar acted" upon by a spring '20 which serves" to keep tape 17 under a constant tension.

; At each end, just beyond the series of plungers 14, bar 18 is provided with a plate form 21 the upper face of which is covered 'witha heat resisting head, such as asbestos 5 22, just beneath tape 17. Theupward movement of each pin 23, H J g The vertical movement of bar '12,, and the parts carriedthereby, guided b ide view .of my 'im- ,vertically movable frame consisting of a 16, and an electrical, heating element 17, q

7120 degrees, dependmg'upon whether two plunger 14 is limited by aj pins "2 5511.. the jtu'k i0 mid such aaaa v movement accomplished ..by ;means (If? foot trea'dle'f26 connected byapyOke'QTYYiPh I j he ape 117 iisifeaiiiiaa 6 su table v within -whicligisgeconr-tr'ollingswitjchsl; v 1

supply. circuit 30.

iaggp raa n. tape j r l H belqw'andfout o Conta t wi a g ass Cylins de'rpla ceddn the c'radles 11. i The operator then steps upon treadle26 and raises the I;

tape 17 into contact with the outer surface of the cylinder at its lowest point} The plungers 14 yield independently so as to'bring'the tape 17 into intimate contact with the cylinder throughout its entire 7 length irrespective. of such variations. in'di-V ameter as unavoidably occur in production.

"The tapeis then heated by a proper flow of electriclcurrent and the cylinder is retained in place until a desired lineof split hasbeen 5 determined 'by the local heating of the glass.

Thereupon the cylinder is cracked either by V I applicationfof a cool: iron or'wet fingerto theheat line, or by scoring the cylinder eX-" ternally for a-short distance along the heated line.

At the present time cylinders of such. di-

ameter are producedthat it is desirable to split the same two. or more times so as to produce two ormore shawls or cylinder sectionsand for this purposemy improved buck .is very efficient because, when the first, 1

heat line 'has been established, the cylinder may be rotated in-the cradle 180 degrees or or three. shawls are desired, and anew heat line is being established while the scormg or other cracking manlpulation is being I accomplished along the previous heat line.

' along a newline of desired split.

. The platforms 13' are so placed-that the; ends of the cylinder. lie thereover, thus finsuring a proper contacting of the tape with" the ends of the cylinder while at "the same time preventing any cuttingor burning out; "of the tape at said ends.

omitted and frame 12 13 nionntedi'n an e1e-.

vet ed" position. a I If clann as my invention:

.5 LA splitting buck. comprising a cradlelikesupport for glass cylinders, an elQQtl'iC V like support for glass cylinders, an eleetrlc heating'element arranged in the lower part heating element arranged in the lower part of said cradle, and a series of upwardly act-- ing plnngers co-operating with said heating element and yieldable'laterally of'said' element, .to hold said element in intimate association with the entire length. of theonter surface of a-glass cylinder supported in the wardly acting plungers 'co-operating with said heating element, tohold said element in intimate association with the entire length of the outer surface of a glass cylinder supported inthe cradle,

3. A splittlngbuck coniprising a cradleof said cradle, andaplurality of independently acting separated means by which said element when heated maybe held inintimate Contact with the under outer surface ofsuch' Q cylinder thronglioutthe entire length of the cylinder.

In witness whereof, I, Eugene Rolland, have hereunto set my hand at clarksburg, West Virginia, this 19th day of'June, A. D.

one thousand nine hundred and twentyfive;

V G ER LLA E j 

